Free-breathing abdominal IVIM imaging
Yu-Chen TSAI 1 and Teng-Yi Huang 1
Department of Electrical Engineering,
National Taiwan University of Science and Technology,
This study aims to apply intravoxel incoherent motion
(IVIM) method to free-breathing abdomial imaging.
Previous studies acquired diffusion-weighted imaging
with prospective respiratory gating multiple averages,
and 10 b values. We proposed to acquire images with 91 b
values and no averages, and without respiratory-gating.
We used a retrospective selection algorithm based on
rejecting indexes calculated from fitting residuals. The
spatial variations obtained using the proposed method
was comparable to that obtained using the protocol
presented in the previous study. We concluded that the
proposed method is a useful alternative to the
respiratory-gated acquisition methods and can be a
practical method for abdominal IVIM imaging.
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